Oil-filter.



G. W. WILMOT.

OIL FILTER.

ArPLlcAloN man Aus.\5`, |916.

Patented Deo. 10, 1918.

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GEORGE W. wILMoT,-or HAvzLEToN, PENNSYLVANIA.

OIL-FILTER.

Specification of Letters Patent.

Pateteunec; 1o, 191s.

Application filed August 15, 1916. Serial No. 114,985.

T0 all. wlw/1t t may concern: f

Be it known that I, GEORGE W. WILMoT, a citizen of the `United States, residing in Hazleton, county of Luzerne, State of Pennsylvania, have invented certain new and useful Improvements in Oil-Filters, of which' the following is a specification.

Inthe use of oils as lubricants, as, for instance, in automobiles where a considerable quantity of oil is carried in the crank case,

they become dirty and filled with sediment and are now generally thrown away which entails considerable loss and waste.

My invention has for its main Vobject to provide a filter suitable for filtering such oils which is simple in construction, efficient in operation and whichmay lbe employed economically for the purpose of filtering and cleansing the same so that they may be continued in use. f

A further object is to provide suitable means whereby the oil to be filtered may be heated to a greater or less extent and thereby rendered more liuid whereby the impurities may be more readily and completely re moved therefrom.

Other objects and advantagesl of my invention will be referred to in the detailed description thereof which follows or will be apparent from such description. f

' My invention is susceptible of being embodied in different forms of mechanical constructions but in the accompanying drawing I hafe shown the same embodied ina form of construction now preferred Kby me.

In the said drawing f IFigure 1 is a longitudinal sectional view of a filter embodying my invention; and

Fig. 2 is a transverse sectional view ofthe same taken on the line 2-2 of Fig. 1.

Referring to the drawing, 1 designates an outer casing having a transverse plate-2, constitutin the bottom of an outer chamber 3. Situated below the bottom 2 is a second plate 4 forming a support-fr a lamp 5 employed for heating the water contained in the lower portion of the outer chamber 3.

The lamp 5 may be inserted into the space between plates 3 and 4 through an opening 6 formed in the lower part of the casing 1 and closed by means of a door 7'.

Air enters the space between plates 3 and. 1l through openings 8, three only of which are shown. p i

.The outer casing 1 is supported upon projections 10, constituting feet. Y

15 designates an inner filtering receptacle or chamber for the reception of the oil to be filtered. Y

The upper end of the said chamber is provided with a laterally extending portion 16, the outeredges or ends of which' rest upon lugs 17, projecting inwardly from the outer casing 1 adjacent. to the top edges thereof. The top of the filter is closed by means of a lid 18, the outer flanged edge of which fits within the upper end of the outer casing 1. 19 designatesv a bail or handle by means of which the filter may be moved readily .from place to place.`

21, 22 and 23 designate perforated plates situated inside and extending transversely of the inner chamber or receptacle 15', the said plates being supported upon inwardly projecting lugs 21. as shown. The plate 21,V in the construction shown, is situated at a point about midway between the bottom 25 of the inner chamber or receptacle 15 and the top of the same, although, if desired, its position withinsaid chamber may be changed. The plate 22 is situated a considerable distance nearer to the bottom of the said chamber or receptacle. VThe space between the plates 21 and 22 is filled with a suitable granular material 26, such as coke or charcoal. The plate 23 is situated Still nearer to the bottom of the chamber. In the space between the vplates 22 Yand 23 I have provided suitable filtering material such as fabric or cotton threads 27 packed more or less closelyy therein. The space 29 below the perforated plate 23 is freey and receives the oil which is filtered through the filtering substances 26 and 27 The oil to be filtered is placed within the receptacle or chamber 15 and is indicated at' 28. It flows by gravity toward the bottom of the said chamber and is collected in the space 29 from which it passes out through a pipe 30, the upper end of which terminates within the said space--29,as indicated at V31.

The saidv pipe extends from the said space through and-'is secured to the bottom25 of the receptacle or chamber 15 and is provided with a number of coils as indicated at 32, which coils are situated within and covered by the water within the lower portion of the outer chamber 3 within the casing 1. The outer lower end of the said pipe terminates in a receptacle 33, constituting a trap, having a normally closed openingY at 311 through which sediment, carbon or other impurities which may have been trapped in the said chamber 33 may be removed. 35 designates a pipe which extends upwardly from the trap or chamber 33 and whichterminates a short distance below the lower end of an ,inverted truncated cone shaped defiector or distributer 36 for defecting and causing the oil which is discharged from the short pipe 35 to scatter andcontact with the water in the lower portion of the chamber 3, whereby 'it is more thoroughly .cleansed and Puried.- l'

The deflector or distributer 36 is supported upon the lowerend of the inner receptacle or chamber 15.2It may be noted also that the pipe 30v passes through said defiector. f

I have found that the deflector acts more satisfactorily if it be provided with a central rentrant portion 37 at its lower end 'into which'the oil is discharged from thetube 35 andfrom which it passes around the angularfe'dge 38 andthence upwardly along the lower surface of the said defiector or distribu-terl f Q7 The uppermost portion, indicated at 40, of the pipe'within the space 29 is situated above the'leve'l 41 yof thewater "in `the outer chamber 3,/so that there will beno danger that the 'water will 4flow in reverse' direction from4v the-chamber 3sthrough the said pipe The oiliswithdrawn througlra faucet 45` controlled by means of af-valve 46.'

By'fmeans'of-heat from the am'e of the heated sufficiently tofrender, thefoil within the space 29 andwthin the pipe or`tube-3O (including thecoils 32): andv the trap o1" chamber 33 quite fluid so* that water and other impurities which may pass 'through the filtering material `26 and 27 may/be readilyseparated therefrom and collected in the chamber 3 to vbe thereafter.removed`,. as above described, through the faucet 45. V

fIcl'a-imz- L` ,i y@ W f U fi; ,'1. In'Y an -oil flter,""the combination ofa'n outer receptacle, an inner receptacle, the

outer receptacle being adapted to contain water in its lower end portion, filtering material within the` inner receptacle for filtering `oil which passes therethrough, means for withdrawing the filtered oil from the said innerl receptacle `and discharging it into the water within the outer receptacle,` said means comprising a tube-having one or more coils situated in the said water, means for heating the said water and thereby rendering the oil asit flows through the said tube morer fluid and a deflector against which the oil is discharged, said deflector having its sides inclined outwardly and upwardly for defiecting the oil discharge from the said tube laterally and upwardly in all directions in the said water, substantially as described.

l2. In a filter, the combination of an outer receptacle, an inner receptacle, the said outer receptacle 'being adapted to contain water in i-ts lower end portion, filtering ma-terial in the inner receptacle for filtering orcleansing oil 'which passes therethrough, means for withdrawing the filtered oil from the said inner' receptacle and discharging the saine into the said water, a truncated cone shaped deflector situated withinthe water, said deflector being provided with a rentrant portion at its lower end, the oil being ;dis charged from the said withdrawing and dischargingl means into the depression: formed bythe said rentrantportion from which depression' the oil passes laterally and upwardly through the said water to the top thereof, substantially as described.4

Y 3. Ina filter, the combination of an outer receptacle, an inner receptacle, the said outer receptacle adapted toV contain water inthe lower end portion thereof, filtering material within the' said inner receptacle for filtering oil placed inthe saidinner receptacle, means for withdrawing the oil from the'sad yinner receptacle, said means comprising a tube one end of which terminates inthe `said1;recep-' tacle and a trap situated within the said water within whichl the other end of the said tube terminates, the said trap having a-V discharge opening through which the oil which is deliveredfto the said trap from the said tube is dischargedl into -the'said water. Y

In testimony thatI'claim the foregoing as.

my inventionI have yhereunto signedY my name, this Sthday ofAugust, A. D., 1916.' GEORGE W. WILMO'I.

Copies of thskpatent may be obtainecil, 1'o12fve'cI-ents each, by addressing` the Commissioner of Patents.

.l i Washington, D.. C. Q 

